复合材料科学与工程Issue(11)：62-68,7.DOI:10.19936/j.cnki.2096-8000.20241128.008
复合材料防护箱体隔热设计与分析
Thermal insulation design and analysis of composite protective box
摘要
Abstract
In response to a steel outdoor protective enclosure for certain outdoor equipment,referencing the na-tional military industry standard,a"fiberglass+polyurethane+fiberglass"composite sandwich structure enclosure is designed.This design takes into account the variations in ambient temperature and solar radiation over time,as well as the influence of natural convection due to wind speed on heat dissipation.Based on existing experimental data,the effectiveness of the transient analysis method is validated.Subsequently,a transient thermal analysis is conduc-ted on the outdoor enclosure,followed by optimizing the enclosure's wall thickness.Ultimately,compared to a metal enclosure,the maximum internal air temperature inside the composite enclosure is reduced from 78℃to 45℃,resulting in a reduction of 41.6%.This reduction meets the thermal insulation design requirement of keeping the internal air temperature below 50℃.Additionally,a weight reduction of 10.6%is achieved.关键词
稳态热/瞬态热/玻璃纤维/隔热性能/复合材料Key words
steady-state heat/transient heat/glass fiber/thermal insulation performance/composites分类
通用工业技术引用本文复制引用
秦梓凯,邱睿,曹清林,郭平安..复合材料防护箱体隔热设计与分析[J].复合材料科学与工程,2024,(11):62-68,7.基金项目
国家科技重大专项项目(2018ZX04026-001-008) （2018ZX04026-001-008）
国家自然科学基金(52075232) （52075232）
江苏省自然科学基金(BK20201112) （BK20201112）
